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Bootstrap failure/ ICE in rtl.h (was: Re: [PATCH 225/236] Work towardgmane.comp.gcc.patchess NEXT_INSN/PREV_INSN requiring insns as their params)

I am not sure about which patch causes the problem, but with Rev. 214197 boostrapping fails here (x86-64-gnu-linux) while an incremental build with a few other of your changes it worked.

Currently, it fails in Stage 1 with the Stage 1 compiler with the following message.


../../../../libgcc/soft-fp/subtf3.c: In function '__subtf3':
../../../../libgcc/soft-fp/subtf3.c:51:1: internal compiler error: Segmentation fault
0xc4856a crash_signal
0x763f08 bool is_a_helper<rtx_insn*>::test<rtx_def>(rtx_def*)
0x7646a9 bool is_a<rtx_insn*, rtx_def>(rtx_def*)
0x7e9228 rtx_insn* as_a<rtx_insn*, rtx_def>(rtx_def*)
0x7e6b5c duplicate_insn_chain(rtx_def*, rtx_def*)
0x7e6c65 cfg_layout_duplicate_bb
0x7ce90b duplicate_block(basic_block_def*, edge_def*, basic_block_def*)
0x130356d copy_bb
0x1304b5c connect_traces
0x1306b27 reorder_basic_blocks
0x1306d54 execute
Please submit a full bug report,

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